Pumping system.



F. C. WEBER.

PUMPING SYSTEM APPLICATION man FEB. 29, 1912.

Patented Apr. 2Q, 1915.

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7 SEEETB-SHEET 2.

F. C. WEBER.

PUMPNG SYSTEM. APPLICATION mso FEB.29, 1912.

7 SHEETS-SHEET S MJ@ sml'oc E. C. WEBER.

PUMPING SYSTEM.

APPucATloN man ma. 29. 1912.

is@ @ma Y mama@ pf. 2G, m5.

F. o. WEBER. PUml'GSYSTEM.

APPLICATION HLED FEB. 29 i912.

j GQ@ Patented Apr. 20,1915.

m @h/Wagga@ 1 MU@ VWO@ stantially the same as the valves illustrated 1nmy prior patent above referred to, and need no specific description atthis point.

Screwed upon the upper end 'of the pipe 10 and resting upon the cap 9 isa second coupling 24, and from said coupling cap the air chamber pipeextends downwardly, nearly to the lower end of the tube 10, and into thevicinity of the pumping waterlevel as indicated in Fig. le. From theupper end of the coupling cap 24, I extend` theshort nipple 26, leadingtofthe standard T' 27 ,i and from the latter, I lead the discharge pipe2S. Upon the upper openingifi'ffthe T 2T is the gland 29, and throughthelinterior of this gland 29, I extend the airlpipe 30, continuing thesame down through the'.l interior of the well tubes 8, 10 anti/25 to'the vicinity of the reducing nipplelZ/a'nd at its lower end, I providethe reducing nipple 3l from which extendsa shi/friay sectie/[13] of pipe32, the lower end ofwhi, jatter pipe is screwed into thediaphr/agrnylf/i, asf' clearly shown. In this manner'y it ,illbbe seenthat the upper pipe 10 and thefflwer I.

pipe 22 form chambers separated from' each othery by the diaphragm l5,and that saidl chambers have no communication with each other, exceptthrough the valve 19 at' the lower-most end of the pipe 18. Upon theupper end of the pipe I secure the T 33, Aand 'from its lateral opening34, I extend a pipe to the lower end of the reversing valve 3, asclearly shown in Fig. l1. The upper opening of the T 33 is provided witha gland 36 through which extends the pipe 37 down through the interiorof the pipe 30 toits lowermost extremity through the pipe 32, where itis screwed into a by pass 38 in the by pass casting 14 from whichlbypass leads a pipe 39 down to a point somewhat below the upper dischargevalve 19.

From the above described piping systcm it will be noted that the pipesl0 and 25 form an'annular`"chamber 40,? closed at the top and open atthe bottom. This 'chamber 'forms the air chamber, the purpose of whichwill be more fully hereinafter explained. In thevdischarge pipe 23, Imay, if desired, insert at the coupling l4l what I term a capacity disk,that is to say, a disk or diaphragm located in the discharge opening ofthe pipe 2S, having a central' aperture therethrough, which aperture hasa diameter less than the internal diameter of the pipe 28, so that thecapacity of the pumping system may be reduced below the'normalcapacityof the 'discharge pipe 28.` The discharge pipe 28 leads to the closedhouse -plumbing system, and it is to be understood that such system isnormally closed and opened only when water is to be drawn from some oneof the reversing valve. This valve consists of the case 41 provided withthe upper and lower coupling flanges 42 and 43, theA latter a'ordingmeans for connection with theair pipe 35. Thev interior of the case isdivided into several chambers, first, the upper piston valve y.chamber44 leading to the annular chamber 45, which latter chamber communicatesdirectly with the pipe 2 vleading from the' air receiver 1. `Thisvannular chamber communicatesy with a cylindrical passage 46 .to a lowerair chamber 47. in the center of which islocated van exhaust passage48,' the latter leading out through the orifice 49'to rthe exterior ofthe' case. Th'passag'e 4S is y,of the same diameter as the passage 46and their diameters are slightly less than theV diameter of the upperchamber 44. rThe an- 'nular Achamber 47 is in direct communication'yviththe air pipe35. Located in the chamber 44 and lowerv passage 48 is thespool piston valve 50. This piston valve consists of yan upper head 51neatly fitting the upper chamber 44, anda lower valve head 52, thelatter fitted to the passages 4G Aand 48. 4vThe lower end of the head 52is slightly conical l as at 53, so as to fit the valve seat 54.Communicating-with the exhaust passage 49 and coupled to the flange 55ofthe casting 41, is what I term a throttle valve elbow 56 havjlOO ingthe passage 57 registering and communii cati'ngwith the exhaust passage49." The lower opening of the passage`- 57 forms a Y valve seat for thepuppet valve 58, the stemr 59 of which extends up tllrough the body ofthe' elbow, as shown and hasfat its. upperV extremity the'pair of setnut-s 60. Beneath said nuts and bearing upon the .cup 61 is the tensionspring- 62. The tendency of this tension spring 62 is to hold the puppetyvalve, 58 upon its seat and thus throttle the-exhaust.A If desired, thethrottle elbow 56 may be cnneetedby the pipe 63V with the well curb pipe8, as illustrated in Fig. l", so rthat in case there should be anyvexcessive noise it may be muliled or any water dripv will be dischargeddirectly back into the well.'

Coupled to the upper end of the 'casev41 through the'ilange 42 is thesupplemental piston valve case 34. This latterV case' is'provided withthe upper piston and-valvecham# ber 65 and the lower valve lchamber 66.The lower' chamber 66 is formed .counterboring the lower-end of '64,screwthre'ading Athe same for a considerable Vdistance and theninserting'the screw -threaded thimble 6T therein. This thinible 6T isprovided with a .central aperture. 5S, so as to form a communicationbetween'the chamber 66 and the ,i Til@ .eiesed *mlhreede 'i8 passes esT8 is profe i le rioiible clamp e energemem 8 siie of ehe epeexeneepwereliy "iene-e iles est its upper rgering "ieliee'er beers ef fiileCep l ring S3 is to Y iiras uppermos posiion reemen S1 upon ihe i :rieoep The tension of 7 o3 and the set B4 screwing the of the cap S0, asrom the chamber 1 ieee passage suopiementel ifi r en eve siiownin Fig.5, f *will heree'er proceed to 1 71 ,J s i n 21 41 @es i er., me insurgeand fvied pessege 88 said w pese che exhaust passage i9 up e n sareipesage eny- 1^eve neeinter be regulated me in er eo eereese er of sei@1passege, 1 also sure Wili vee gradnely dissipsed through,

there is pressure Within seif vfesse e 38, seeh pressure W111i heequaiized in to. exheus pas:l f 119 ai; the iower end im e #heuse e elsein he Chamber beeween the and 76, and die .ser e irme suoi ,ores

vTile diaphragm valve 87 consists of the main casting' 91 provided withthe @erwies 92 and 93, the former being connected with l the oe'p Qso asto forro a trap or Water seei, the purposevoi which will be hereiiiafterexplained. The lower passage 93 is connected directly with the oenreltube 3'? leading down into the inerior ei' the eir pipe 30 as heretoforeaieseribed. Covering the passages Q2 emi is the eibe da phragm 95 heidin position by the ehemeeed eesing 53, the Chamber 9'( of which permitsthe 'diaphreom 95 to have e eonsierable mevemen eerein. tire chamber n?is ehe pipe 98 eomieeecl eo Some part of the discharge pipe 2S, as forexemple, to ehe horizonte branch oi the 27, and branch 9S where thispipe 9S ieeds beek o the reguinting mire Y.

rEhe reguiting faire "1' shown in vertieei cross section in Fig. 2 is asheretofore steced, ioeeie in the :gir pipe 2 leading from the airreceiver so he reversing valve. This Valve Consists essentially of thelower cast ing 100, the inermeiiiaite casting 101 the upper casting 102.The lower casting s provided with ehe two chambers 103 en@ roe, ingtherein the passage 10S. The upper side oie the diaphragm 105 is formedinto e faire seat 107. Upon the upper side of the casting 100 is securedby means of the iange bolts 108, the Casting 101, said eesing 70eingprovided with the valve Chamber 109 opening into the chamber 103 andseparated sherefrom by means of Gau'ze screen 110. XVthio, the chamber100 is located the holow valve plug 111 the ioWe-rjend of which yisprovied with the esher peeking 112, o

The upper side of Leading from separated Voy the Eliephregm 105, hev- 15to the central portion of the diaphragm 124 in the residence or' otherbuilding.

pipe 98 heretofore referred to'. The chain-y ber 122 is formed by meansof a flexible diaphragm 124 made of rubber, specially treated leather orother material impervious to Water. |This diaphragm 124 is held inposition by the flange 125 of the upper easting 102, by means of thebolts 126. Secured isa downwardly extending boss 127 which extends intothe chamber 117. Upon the upper side of the diaphragm is secured the[iat spring seat 128 with its upwardly projecting boss 129, forsupporting the lower end of the compression spring 130. Upon the upperend of the spring 130 is located the cap 131 which has marginal slotstaking over the internal guide 'ribs 132,v so as to vprevent therotation of said cap 131. The compression of the spring 130 is effectedby means of a screw 133, which is screwed into the central aperture ofsaid cap, said screw being provided with a collar 134 which bears uponthe under -side of the doinelike top of the casting 102. The upper endof the bolt 133 projects outside of the dome land is squared as at 135,so that the bolt may beA turned by means of a wrench when itis desiredto adjust the compression of the.

spring 130. The plug valve 111 is made to move easily within the chamber109 with a very slight clearance, so that ai-r pressure coming throughthe pipe 2 int-othe chamber 103 may gradually'lind its way from said'chamber 103 into the chamber. 109, so as to equalize bothlaboveand'below the Valve 111, or if desired, the valve 111 may be made to fitthe chamber 109 quite closelyV and the leakage from the chamber 103 intochamber 109 be provided for by a small by pass,kat 13G.

Having now fully described the 'structure ofthe various parts of myimproved pumping system, I will pow proceedto describe its operation. Itwill be understood lat the beginning that thewell. is comparatively deepand its upper 'end is sulicieiitly enlarged as at 137 to receive theparts of the structure illust-ratedv in Fig. lh, and that said enlarged'upper end `Of the well is covered withv the cover 138, whilel' the pipes2- and 99 lead laterally to the air reservoir and .parts contiguousthereto above the ground level, such airreceiicr being usually locatedIt is also to be understood that pressure in the reservoir 1, is to bemaintained at a coin- 'paratively high point and that the degree of suchpressure will be registered upon the gage `With the valve 5 open, airpressure will be admitted into the chamber 103, where it will passbeneath the valve 111, and

- if there is normal air pressure in the chainber 109, said valve willbe raised from its seat 10T, and such pressure will pass from Vthechamber 103 into the chamber 104- and thence along the pipe 2 to theannular cham ber 45 of the reverse valve, thence it Vwill pass downthrough the passage 47 through pipe 35, thence through the by passcasting 14 to the liquid chamber formed by the pipe 22. Normally thelower end of thel pump tube should be immersed to a depth substantiallyas indicated in Fig. 1c. Under v `suchconditions the water will find itslevel Y in thevinterior of the lower liquid chamber 22, through thevalve 23. The air pressure coming down through the pipe 30 and throughthe by pass casting 14, exerts itself upon the surface pf the liquid inthe liquid chamber 22, with the result that the liquid or water lisforced up thro-ugh the interior pipe 20 past the valve 19 into the pipe18, thence through* the by pass casting 14, and tothe upper pump section10, and within the chamber-.40. As above. described, this inner. tube 25is in direct communication with the discharge pipe 23 through thel T 27.As the water or liquid is 'forced up through'the upper pump section, theair in the annular chamber -40 formed by the pipe 25 and the pipe 10 istrapped in such a manner as to form 'a compression chamber. At thebeginningythe discharge pipe 2S leading tothe yhouse plumbing system isleft Open until a solid column of.A water fills the dis- `charge pipe28, and alli-of the/various pipes in the house plumbing system. lWhenthe level of the water within the lower liquid chamber 22 drops belowthe lower extremity ofr the pipe 39, which of course takes place onlywhen some one or more of the faucets eonneetedswith the house plumbingsystem is open and the' pressure in the dischargev `pipe 2Scorrespondingly' lowered, the excess of pressure in the liquid chaniber22` will force the water" upwardly through the pipe 39, the by pass3Sl`and the pipe 3T to the the lower en d of the Apipe '39 and lbubblesof i25- and as'tliey approach 'the top, will drive the Y air willshootlup through this water column superpeseifl water ahead and not onlyproduce a water hammer" diminish the head and over-balance thepreseifect but also I-i`i5 diaphragm valve Stlirough the passage 93.

sure on the opposite side of the diaphragm an (ill MO in the water linepipe 20 below the valve 19 and at a point on a level with the lower endof the pipe 39 so that whenever the air pressure in the liquid chamber22 forces the water level down to or below such aperture 140. the airwill have access to the interior of the pipe 20. This air, under theheavy pressureto which ite is subjected, will pass through the aperture1l() and trickle up past the valve 19 through the Water column to theupper water el'a'un'ber formed by the pipe 10, ln order to prevent theair bubbles from rising' into the water Vdischarge. pipe through thepipe Q5, I provide a delector lll mounting; the same upon the pipe 30just beneath. the lower extremity of the pipe In this manner, therising` bubbles will be directed into the annular chamber 40, betweenghe pipes 1.0 and 25. In this manner I am able to maintain the normalsupply of air in the chamber 20 against any leale ze through imperfectjoints.

lt is possible for this means of repleuishing the air in the chamber`el() to supply more air than is necessary for actual practical use, and.in order to disposent any surplus air. that is, more than is rrequired:for maintaining the uniform pressure in the charm ber 40, ,l provide amail aperture 140 in the side of the pipe'if at a predetermined heightabove'its lower end, so that when the forced below the aperture 140 thesurplus air will escape intothe discharge pipe 28 andv the' pressureVwithin the chamber 40 will be cr'irrespondinglyreduced. Immedia telyupon venting the chamber 40 through the aperture M0 the level of thewater in said chamber will rise until equilibrium is again restored.When water is drawn from the discharge pipe '28, it might be thoughtthat the air pressure in the chamber 40 would not operate to continuethe discharge ot water after the level in the chamber 40, has passedbelow the laperture l'l-O. This is not the case. for the reason. thatwhen water is drawn 'from the discharge pipe '28, it is under what maybe considered two heads of pressure,'namely, that in the chamber' l0 andthat which comes through the pipe. into ilu liquid rhamber 22. (loirsidcrabledra tis ol' water may be taken 'from .to form thevg'oose neck9F.

Water level within the chamber Ll0 is y will have had time to escapethrough the aperture 140', so that, practically the entire; length ofthe pipe 25 may be utilized es a compression air chamber..

ln order to insure suilicient Water friction in the pipe 94, l have, asabove indicated,

interposed the Water seal orloop 91k' in the pipe 9i. Under ordinarycircumstances, Where the water lift is not too high, l find that thismeans affords suilicient Water friction in the pipe 91. It may bedesirable hoveever, under certain circumstances to provide additionalmeans of producing friction in the pipe 9-land to this end, I mayinterpose a trap substantially as illustrated in Fig. 6. In this casethe pipe 94 enters the upper end ot cylindrical chamber .Qi-l2. Thelower end ot' this chamber receives the lower section of the pipe 9i andsuch pipe extends up into the chamber 9&2 vit'or a considerabledistance. and then is turned back upon itself At the very uppermost parto1c the turn in the goose neck 9F.' locate a` minute vent as 94E. Thistrap serves the' same purpose as the tloop 94C" and its action issubstantiallyvas follows:

The surplus or overflow of `vvater from the valve ST. it Will beremembered must be disposed of, and yet it must loe retarded in itsdischarge. In Fig. lb the structure is shown as depending solely uponthe friction of the Water in the pipe 94. l'n Fig. 5ya to add to thisfriction and form a Water seal'. the loop 9i, is inserted, but Whereincreased friction' is desired. the structure in Fifi. S is used. lVaterfrom the pipe .fl-t yis dis charged into the chamber 91552. This chamberbeing hermetically sealed otherwise than by way of the inlet pipe 9stand the discharge goose neck 94, the air which the chamber containsmust. upon the accnmiila` tion et 'water therein. find an outlet througha small vent ll-P. No siphoning action ot the goose neck however, takesplace until water has`K accumulated in the chamber toa height above,theupper turn of the goose nec; 94, at which point the accumulation" placethe registering gage 14.2 in the pipe 955?.

'lhi's` gage, it will be noted7 will register all ol' the tinctu ationsof the pressure 1n the die i'charge pipe 28, which of @ourse 'means thewaei pressure in jhe house plumbing system above ground.

' 7" e nteipesiion of the regulating vaise is is? the purpose ofshutting @if the air imm the L.ir ieeeiver l, from the system at timeswhen excessive nos mede upon the discharge pipe im example, ai' i I@ isa fact 'n sii isolated pair fins; sysems, i is oir: es" he g( acesfrequeniy occur and it is in order te lesxiil the sil in ghe res-elseifand prevent its slow leak-age, by wsj! of he pipe 2, beyond theregulating vave T and the discharge'passnge 49 to *che eriisust vent 90,through imperectiy operate@ Wives or the like. t such times t iepressure in the house pumbing m' closed service sipes Wiii be maintainedby the accumulate@ psessue in ibs ail* c zamber 4.0, and inasmuch as theWe.- iei in die house plumbing system is -'apped above the waive liv),such piessme wil meet sigii 0i' even ordinary drafts upon the same.vwhen however, suele drafts are suicent te reduce the ee ef the amies inthe lower iiqwd chamber Q2 below he lower end of the pipe 39, then theeufvmate action, ss he'etofei'e described Wi'i take place, and thesupply of air under pressure Win' again be admitted to the system, Thepuipese of the.

zeguating miie T is so stop nii the ai? from the pmipng system after thesame has been supji'iiec with en initia charge and then permit hnlcharge to be exliiausied to e, Certain pein. men s, new charge of isaclfrfzited to the' system freni the receiver n this manner, the airreceive?, into which gees the principal cos; of masenance, is iseatedfrom the pumping sfsten: exsep at times when the nii -in said sysem neesrepienismng, Y

As hitherto describe, pumping system is sppiieabie to weils of erimm'yel medium deph; but in Order te adam is se weis of Hreuei' depth, nd itadmsebieto eevse he 'fmu the WGH .by ssges sn for shut Tensen he duplexform, ns iustmted in Fig: T is use-d.' In this ease is necessary also tosiightijf modify the reversing vaive 3, se that for tiieduplex systemthe veves 31 and 32 :me se intereonneced es to sperate atemate y. InFig. 7 the ai? receiver l, the ,gage 1, globe vzxive 5, cut QE valve 6,eguating valve 7, and rthe pipe 99 with its gege 142, are the sameinpurpose and alraiigemens as shown in Fig. 15. n pieetiee nd i avisebie oprovide a safety Vaise i60 at the receiver l so preventVeveichgaigiigthe receiverE The pipe 2 is ie frein she above descibed parts to a T161, seid being connected as sum'n in 7 An the pai? of regu-'- valvesare in the mein seme es the remi,

iaing 'i/'eve shows d of moei wss fr@ i v 1 w Gemes,

"N valve su valve 31 m61 seme es i Fom 'Ehe J charge pine This sans ismay isili; deseribeiin ceA 40. FHL@ CD ead the pipe the house pim Theexilim 32 leaiis iiA the cir Valves 81 fn exhaust Wiil mises.

Reerrii'ig the reversing imdes-endmg fee @per theuppef: per?. its axishzeuhn s. ,s sets upon she iowe v practice however, the shown in 7. Thei r she lower' cest-ing si', egeiex Wiki valve, ports sind passagesihesein, is ientieai in 'all respects Wish th shows in emmeeiou "2O withFie. 3, so that fates? tion 0x" saisi pelis is deeme unA f Secured zeshe lippe; "s is tiles/*sive missing nis Y A: ,i curing me?! se by cfvenieit 3125 for example, 'by means si the bei N53 passing rusugh e mgeof msing C inte the sge 41m of i 4l. lower end s the casting cmmterboreda0 :form e ehembez 36 mso the lower end of which is screwed the cap 67centrally apcrtured as at 68 to form a communication between the chamber66 and the chamber alle?. The valveseat 69 is provided in the upper endof the chamber 66 for the receptiono'lf the puppet valve 70, said valvebeing guided by means of the stem 71 in the casting 6ft as shown.Directly above the puppet valve TO is located the small chambcr'l andleading from it is an exhaust passage to the open atmosphere. The stem71" 'projects into 'an opening 65 which opens laterally outside of thecasting.

The spring 7s', located Within this chamber 66 serves to hold the puppetvalve 70" upon its seat. y

Adjacent to the opening 65 1 locate the vbell crank lijl with one armthereot` project ing'y into the chamber 65 for contact With theuppcr,end oi the valve stem 71. vA corresponding bell crank 165 is connectedto the twin reversing valve in identically the same manner and for thesame purpose. 'lrhese bell cranks 164 and i6-5 are connected together bythe rod 166 so vthat they operate in unison but in opposite phases; thatis to say, when the inwardly projecting arm of the lever 16% swings downto depress the valve the corresponding inwardly pr0- jecting arm of thebell crank 165 is raised to permit the seating of the correspondingpuppet 'valve in the other reversing valve mech anism, and vice versa.ln order to prevent accidental displacement 01' this toggle link andlever arrangement, I provide a collar 167 upon the middle portion of thelink 166, said collar being V shaped in cross sectioii, for coperationwith the V shapedspring snap 168, which is secured in place by means ofthe bolt 162. From this construction it 'will be seen that the togglelever and link mechanism will shift so that the collar 167 will. firstbe upon one side of the spring snap 168 and then upon .the other, thespring serving as a yielding means for preventing accidental shiftingo'l the parts. i

T he casting Gel is provided with an upper chamber 652 for the receptionof the piston 76". |lhis piston'is slightly different from thecorresponding piston illustrated in Fig, 3, inasmuch as it is providedwith a valve 762 Lpon its upper end 'for coperation with the valve seat762, the purpose'oi' which will be hereinafter 'fully described. Thepiston 76" is fnrther provided with a. depending stein 764 which passesthrough an aperture in the casting and extends into the chamber G5 inposition to engage the-inner arm of the toggle lever 164. l provide thechamber 652 with a lateral discharge or exhaustopeningffl to correspondwith the passage 88 ol'l the valve shown in Fig. fl. shown this openingyas connected across to the corresponding'lp in the reversing valve 32,by 4means oil th pipe 882 with In Fig. '7 l have chamber 652 4and isprovided at its upper end with a pair of adjusting set nuts 82 for thepurpose .of adjusting the tension of the spring 88 in exactly the sainemanner as the corresponding parts illustrated in Fig. 3, are operated.The upper' end of the chamber i352 is closed by the casting in which thevalve seat 7 63 is formed. The valve 762 is for the purpose of closingod the chamber 652 from the pipe 86". vReference to Fig. 7 will showthat the'pipe 37 is coupled directly with the pipe 86 and that in thepipe 86 l have located a T 862 with a drip pipe 862. Thecorrespondingpipe 864 leads into the valve 87 which as above described is in allrespects the same as the .diaphragm valve.

- 87 illustrated in Fig. 5. 4

lt is to be understood that each of the valves 31 and-32 may be providedwith a side passage 88 leading from the exhaust passage 49 up to theupper castings 64 in the same manner as is shown in Fig. l; butin suchcase, I would dispense with the pipe 882 and l its connection withtheexhaust T 56. I prefer however, in the duplex system to omit saidside passages 88 from the valves 32 and 82,'and use as asubstitute, thepipe 882 with a. connection 88 tothe T 56 and locate in said connectiona needle valve 'as 89 for throttling the retained two pounds of pressurefrom the exhaust T 56. The latter construction is solely for the purposeof reducing the number of parts Ato be looked after vand adjusted.y Thisduplex system operates as follows: Air pressure is admitted from thereceiver 1, through the regulating valve Ffto the T 161 Where it isadmitted to the chambers Within the valve casting 41 to operate einsubstantially the manner described jffcln vconnection with the reversingvalve illustrated in Fig. 3. It must be un-V l Vderstoodljthat one orthe other of the puppet valves 70 of the reversing. valves 31 and 32-Awill be unseated thereby permitting the corresponding upper chamber 44to be vented through the orifice 68 and the exhaust open` ing 73. fAtsuch time the spool valve corresponding to thc valve' 50 will be raisedso as toexhaust the corresponding liquid cham- .beroi-TZQ In theposition of `thepart shown in vFig. 7 the lower chamber 22 isbeinglexhausted of its air through the correspondingI pipo and reversingvalve 31.

This will permit fin ogiun of Water from thel finto the lower chaml.lywith this operation puppet valve 70" in the well past the valve 23.bci-22. Simultaneo. the correspbnding l i reversing 1 lated pres e inthe corresponding chamber ve 82 is closed and the accumu- :trav

except by way of the upper liquid chamber i 222 and its discharge pipe182. Moreover, I

iind that the method ab'oyaedescribed for rel plenishing the tank2S2'w'ith air, by way of .y the pipe 372 and the small vaperture1402,is4

adequate. AIdovveven'in casethe two stages are separated, as in the caseof their o erat-f ing in separate wells, I may if desire provide anaperture in the short section of pipe below the valve 19 correspondingin all re. spects to the aperture"1402in the pipe 202,- so that thisreplenishing of the chamber 282,

by the means illustrated, wouldA be substanftially, the same; but such astructure would be'substantially the same as that illustrated inlconnection with Figs. 1b, le, and 1d, and the two wells wouldieach havea duplicate of that structure. The duplex 'reversing valve in such atwowell system would be substantially the same as that illustrated in Figs.7 and 8, except that each of the valves 31 and 32 could be providedwiththe diaphragm valve'87'.

exhaust passage therein, v,with a throttling valve in said exhaustpassage. y

4. In a pumping system, the combination ot' a source of fluid pressuresupply, a source. of liquid supply, a liquid chamber, avalved'inletcnnection from said liquid supply :tu

said chamber, avalved and normally closed.v

discharge pipe leading from said` chamberl to av level higher than` thatof said` liquid supply, .a reversing valvefor admitting pres-l suresupply to said liquid chamber, saidv valve actuated by differentialpressure from said -fluid pressure'supply 'to exhaust said I have not'shown'the two drip pipes 863i and 945 asconnected back to the well,'but

it shouldbe understood that 'these pipes may be'co'nnecte'd back so asto discharge into the well in the same manner as the pipe 94: shown inlFig. 1b, iflde'fsired. These changes of'partsto meet diilerentconditions in-practice, I'do'nnot regard as modifications in anyrespect, but consider them as .partand parcel yof the entire 'structureandy to be used as and where conditions may require.

I claim,

1. In a pumping system, the combination of a source of fluidpresguresupply, a liquid chamber having inlet and discharge valves,

'a reversing valve for admitting liuid pressure from said supply to saidchamber,` and i for exhausting said pressure therefrom, and

meansfor thrcttling the exhaust from said liquid chamber.

2. In a pumping system, the combination of a source of fluid pressure, aliquid rhumber, inlet and disg'arge valves4 for said chamber, arcversi'g valve for admitting pressure from said-'supply toandexhausting the'same from said liquid chamber, and a differentialpressure` operated means actu ated by thev lowering of the liquid insaid ,liquid chamber to admit said fluid pressure to and for actuatingsaid reversing valve to ehlmff't the Pressure from said liquid Chim? zInafpumping system, thev combination vuree of fluid pressure supply and a.offliquid supply, a liquid chamber, a ,inlet connection between saidchamber said-liquid supply, anormally closed barge.- pi'pe leading fromsaid chamber, uerfsing valve'or admitting fluid presjfrcmaid'uid supplyto` said liquid fluidfpressure fro'msaid liquid chamber, and

means for creating said differentialof .pres-l sure for actuatingsaidreversing valve.

5. In a pumping system, the combination of a' liquid chamber having avalved inlet and a valved discharge pipe, a reversing valve'forintroducing air pressure to and exhausting the saine from said chamber,

and means for actuating said valve operatedA .Y by a differential. ofpressure between sald A discharge pipe and said liquid chamber.

6. In a pumping system, the combination of a liquid chamber, a valvedinlet and a valved and ,normally closed dischargepipe for said chamber,a valve for exhausting the vpressure from said chamber to cause an in-Vhausting 'pressurp from said chamber to cause'arrise of liquid'therein,and for admitting pressure thereto to cause a vdischarge of liquidtherefrom into said discharge pipe, means comprising a diaphragm valveoperated by a differential of pressure 'between said discharge pipe andsaid liquid chamber 'ico' 'to admit accumulated pressure from saidliquid chamber 'to actuates aid reversing fjsaidreversing valve havingan ing said severlal passa valve.

8. In .a pumping system, a valve, means for permitting'fluid pressure toactuate said valve to admit such ressure to the pumping mechanism, anddi 'erential pressure actuated mechanism or operating said. valve toexhaust said pressure from said pumping system anda valve' forthrottling the exhaust of said pressure from said system.

9. In a pumping system, a reversing valve comprising a valve casehavingfinlet, discharg and exhaust passages therein, dit# ferentialpiston and valve( chambers connectges,\a di`erential plis# mesme valve,greviy ineens for eeueting ssi Valve to admit fluid pressure se shepumping system, a i'erenialpz'essua'e "nissen connected to said Vave to?seieesmg ecenmnaied vpressule upon the sife seid piston,

to cause the seme te somete seidirss named valve and thereby exheus;the' pressuie fem seid system, and means is? ieeeining p01- tion of thepl'essure wihin seid syseema l1.Vv In a pumping sysem, the eeinbinatienlof e source of uid pressure suppyi e liquid chamber having inlet engldisehsge velues, a reversing velue AIci" ,admitting jiessure from saidsupply te seid chamber end exhausting seid pessuie zheeffrom, means 'fonautnoznaticaiy eguieting the admission of inici' pressue'e frenz/saidsuppy en vsaid. lreversing valve; and "means for threw-ling the exhaustfreni seid ii'quid eheinbei'.

12. n a pumping system? the cembuetion o' e source of iui piessuiesuppiy, siiqui ehamber having inlet and discharge veines,v e reversingvahe :50e adnii'ing piessuie Ifrom said supply te said enembennd iterexheusing sei piessuie herefrnm, mee-ns for retaining the eziheus?, zemseid liquid diamine? and meses for utilizing the reerded exhaust ere irefer z'emding the :www ion of said Fevesing sive ze ienfimit eressure tosaif eilen i3. In e pimpin iena? 'iie combine'on of e source of iuidpiessuie suppiy, a iquid Chamber having inlet sed iseimrge veives fersid diamine; s reversing Vaise for ed Initing pressuie from saic supplyto and exhausting lie same from seid iquid Chaniben means for ne exhaustfrom said ehembei and mei is im? utilizing said i5. Les pumping syssenz,e Jdi''eentiel ,pressue and gfeviy ee-ueteci veiffe eem prising e vevecese e pressure niet perf, and en exhaust outlet ser/'ice pipe emi svalve cheminee lziiee i5. s vulve in said chamber in pew le normali? 7@close the seme from "Il i peut, whereby pressu'e may gradually chamberabove s-'elve x equalize the pressure there@ r 10W said valve, (i.i'esiictefi i is eh 7.5 from seid ehem/ber seid vaine, s pegpetfveiveebntoliing seid exhaust por; euri di'erenfia pzesszue eeeee. me ismoperating seid puppet vsiye te e exhaust port, "whereby geed se ei:`seid reveisiig veve uri. peiilnen simutzmeensiy pipe eosaiVi-esmnsf33ers g s s umili pressure end gevitj' n- S5 pipe and e'vei've Q: seid ehembe in a pesitien ehe seme from said if se by pressuemay" geduelf ,eid e isi equuize pressuleeheiiein w ie-e" velue. erestzieteci euh-euse pei-. ilo? ssii abofe seid nave, e veine cenere fi,1 `L L l ML' u e sind emeusi.. peice es i diifeie mei piesssieeetuee-neehsnism 'e: epei :i 2g' seid @et valve )zo epen'seiu by agreduei @peres-ion ei @sive wii nisse said ine neessiy open seid hausepm, means c'esing of sei puppe* 'e i s i ising a ez ne .A pot andesiiese es* pipe and. e Juive eiieinnei1 seid chemins? in e pesi .u thesame from i '1 by pressure me be? shove v the piessui'e therein e,vaive, e est'iieteci esili chamber above seid wei-fe Controiiing saidexssus p tie pressure zictusteci mechanism *en ating' said puppet valvete @pen se' ik pori whereby e gradual e reversing miv-e will Giese seidiifel simultaneously open seii seiufiee said exhaust inert?, time inecei te sein exhnusf-v peril ei "e portion of the pessiue 'Within pipe.f

18, n e puin-ning sysem, iii

ne and 120 means for admitting fluid pressure from 'said supply to saidchamber and for exhausting said pressure therefrom, va 'discharge pipeconnected With said discharge valve,and a compressed air -chamber asso-vciated with said discharge pipe for maintaining` substantially a uniformpressure upon the liquid in said discharge pipe and means forautomatically re lenishing vthe air in said chamber from sai fluidpressure Supply- 19. In a pumping system,"the combination of asource ofiuid pressure supply, a liquid chamber having inlet and dischargevalves, 15 means for admitting iiuid pressure' from hausting saidpressure therefrom, a, discharge pipe conreted 'with said dischargevalve, and a compressed air chamber associated with said dischargepipe'for' maintaining substantiallya uniform pressure upon the liquid insaid discharge pipe,I and' means for replenishingthe air in saidcompressedair chamber-from said liquid chamber, for maintaining thepressure in' said compressed' air chamber againstleakage therefrom.-

20. In a pumping system, 'the combination of a liquid chamber, a valvedinlet and a valved discharge pipe for ,said chamber, a valve forexhausting the pressure from said vchamber to cause 'an influx of liquidthereto "through said valved inlet, and. for. admitf ting fiuid pressureto said. chamber to cause the discharge of 4the liquid therefrom, acompressed air chamber connected with said discharge pipe, and means foradmitting compressed air .from said liquid 'chamber to said compressedair chamber by Wayvof said valved discharge pipe, for maintaining thepressure in said compressed air chamber against leakage therefrom. v 1Y. l 21. In a pumping system,the combina'- tion of a source'of fluidpressurel supply, a plurality of liquid chambers each having inlet anddischarge valves, a plurality of reversing valve'sfor admitting fluid.pressure from said supply to said chambers, and for exhausting saidpressure therefrom alternately, 'and means for 4throttling the eX haust,from said liquid chambers.

22. Ina pumping system, the combination of a source of fluid pressuresupply, a plul rality of liquid chambers each having inlet and dischar evalves, a reversing valve for eachof sai chambers for admitting pressurefrom said supply to and exhausting the same from said liquid chambersalternately,

and a differential pressure operated means Y'Q0 actua-ted'by thelowering of the liquid in said i 1 liquid chambers to admit said fluidp'ressure Y to and for alternately actuating said reversing valvesrespectively to'exhaust the pres-y V-. sure4 from said liquid chambers.y

' li.- 23. i'.-Iu' u pumping systemthe combination said supply to saidchamber and for eX-V of a source of iiuid pressure supply, and a sourceof liquid supply, a. plurality of liquid chambers, valved vinletconnections between 4each of said liquid chambers' respectively and saidliquid supply, a vnormally closed discharge pipe leading from each ofsaid chambers, a reversing val vefor each of said liquid chambersforadmitting fluid pressure frein said Huid supply to said liquidchambers respectively, said reversing valves each having -an exhaustpassage therein leading to a common exhaust discharge, and a throttlingY valve in said ezihaust discharge.

24. In a pumping system, the combination of a source of fluid pressuresupply, a source of liquid supply, a plurality of liquid chambers,4valved inlet connections from said liquid suppl7 to said chambersrespectively, a valved an normally closed discharge pipe leadingfromsaid chambers to a level higher than that of the liquidsupply,reversing valves for admitting pressure from said preure supply to saidliquid chambers respectively and alternately', said valves actuated by',differential pressure from said fluid pressure supply to exhaust saidpres- 4- sure from said liquid chambers respectively,

and means for creating a dierential of pressure for actuaingsaid'reversing valves.

25. In a pumping system, the combination of a plurality of liquidchambers each hav' ing'a valved inlet and a valved discharge pipe, areversing valve for each of said liquid chambers for alternatelyintroducing air pressure to and exhausting the same for actuating saidreversing valves operated Vfrom said chambers respectively, and means lby a differential of pressure "between said cause an' influx of liquidthereto through.

said valved liquid inlets` and for permitting y lliquid pressure to saidchamber to cause a Q.

discharge of liquid therefrom, and means actuated by the differentialof. pressurev between said discharge pipe and Asaid liquid .y chambersfor actuating said valves toeX- haust said liquid chambers alterantely.

27. Ina pumping system, the combilia'- tion of ja plurality of liquidchambers, ya .y valved inlet and a normally closed discharge pipe havinga valved connection with and for each of said liquid chambers, al valvefor each of said liquid chambers for exhausting pressure therefrom tocause a rise of liquidr therein, and for admitting pressure theretov tocause a discharge of liquid therefrom into. said discharge pipes meansfor actuating said valve' operated bix/:a differential of pres-

